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Lack of projections from medial geniculate body to suprasylvian cortex in cat: a study with horseradish peroxidase.

Lack of projections from medial geniculate body to suprasylvian cortex in cat: a study with horseradish peroxidase.

Authors :
Stasiak M
Glendenning KK
Source :
Acta neurobiologiae experimentalis [Acta Neurobiol Exp (Wars)] 1998; Vol. 58 (3), pp. 177-88.
Publication Year :
1998

Abstract

Because both electrophysiological and behavioral methods have implicated the suprasylvian cortex of cat in audition, its afferents were studied using retrograde transport of horseradish peroxidase. The bulk-filling method was used to maximize the likelihood that virtually all afferents to the area would be labeled. Despite the vivid retrograde labeling of many thalamic cells with this procedure, no direct auditory projections to the suprasylvian cortex could be found in the thalamus (i.e. in medial geniculate body or in the dorsolateral part of the posterior nucleus). Furthermore, very few cells were labeled in the primary auditory cortex of the nearby ectosylvian gyrus. The source of afferents to the suprasylvian cortex originate mostly from the pulvinar-lateral posterior complex and to a lesser extent from ventral lateral and ventral anterior nuclei of the thalamus.

Details

Language :
English
ISSN :
0065-1400
Volume :
58
Issue :
3
Database :
MEDLINE
Journal :
Acta neurobiologiae experimentalis
Publication Type :
Academic Journal
Accession number :
9803011
Full Text :
https://doi.org/10.55782/ane-1998-1272